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Journal of Korean Neurosurgical Society 2007;42(3): 220-223. |
| Dural Marginal Zone Lymphoma Confused with Meningioma en Plaque. |
| Min Young Kim, Seong Min Kim, Seung Young Chung, Moon Sun Park |
| Department of Neurosurgery, School of Medicine, Eulji University, Daejeon, Korea. nsksm@eulji.ac.kr |
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| ABSTRACT |
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We report a case of dural marginal zone lymphoma which showed the usual radiological findings resembling meningioma. A 59-year-old woman presented with headache.
Initial computed tomography and magnetic resonance images showed a frontal convexity meningioma. The patient underwent a craniotomy and subtotal (simpson grade II) resection of tumor was done. Pathological examination confirmed an extranodal marginal zone B-cell lymphoma of Mucosa-Associated Lymphoid Tissue (MALT). The lesion was composed of a lymphoid mass with irregularly shaped follicles surrounded by many monomorphic small lymphocytes and a stained marginal zone for B-cell markers CD20 and CD29a. The natural history of primary CNS lymphoma and MALT type lymphoma are different. B-cell MALT lymphoma can mimic meningioma in its radiological features. Accordingly, MALT lymphoma of the CNS must be considered in the differential diagnosis of meningioma. |
| Key Words:
B-cell lympoma of MALT; Meningioma |
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